On 26/07/18 20:36, Junio C Hamano wrote:
> Phillip Wood <[email protected]> writes:
>
>> +sub label_hunk_lines {
>> + my $hunk = shift;
>> + my $text = $hunk->{TEXT};
>> + my (@line_flags, @lines);
>> + my ($block, $label, $last_mode) = (0, 0, '');
>> + for my $line (1..$#{$text}) {
>
> $text is a ref to an array so @$text is the whole thing, $#{$text}
> is the index of the last item in that array, and $text->[0] is the
> first element of that array. This for loop runs with $line == 1
> thru $line == $#{$text}, so we are somehow excluding the very first
> element?
Yes that's right, $text->[0] contains the hunk header
>> + $line_flags[$line] = 0;
>> + my $mode = substr($text->[$line], 0, 1);
>> + if ($mode eq '\\') {
>> + $line_flags[$line - 1] |= NO_NEWLINE;
>> + }
>> + if ($mode eq '-' or $mode eq '+') {
>> + $lines[++$label] = $line;
>> + }
>> + }
>> + if ($label > 1) {
